/*!	 synfig/rendering/common/optimizer/optimizersurface.cpp
**	 OptimizerSurface
**
**	......... ... 2015 Ivan Mahonin
**
**	This package is free software; you can redistribute it and/or
**	modify it under the terms of the GNU General Public License as
**	published by the Free Software Foundation; either version 2 of
**	the License, or (at your option) any later version.
**
**	This package is distributed in the hope that it will be useful,
**	but WITHOUT ANY WARRANTY; without even the implied warranty of
**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
**	General Public License for more details.
**
*/

#ifdef USING_PCH
#	include "pch.h"
#else
#ifdef HAVE_CONFIG_H
#	include <config.h>
#endif

#ifndef _WIN32
#include <unistd.h>
#include <sys/types.h>
#include <signal.h>
#endif

#include "optimizersurface.h"

#include "../../software/task/tasksw.h"
#include "../../software/surfacesw.h"
#ifdef WITH_OPENGL
#include "../../opengl/task/taskgl.h"
#include "../../opengl/surfacegl.h"
#endif

#endif

using namespace synfig;
using namespace rendering;

void
OptimizerSurface::run(const RunParams& params) const
{
    if (params.ref_task->target_surface
            && !params.ref_task->target_surface->empty()) {
        bool sw = params.ref_task.type_is<TaskSW>();
#ifdef WITH_OPENGL
        bool gl = params.ref_task.type_is<TaskGL>();
#else
        bool gl = false;
#endif

        if (sw || gl) {
            // Create surfaces when subtasks have no target_surface
            bool optimized = false;

            for (Task::List::iterator i = params.ref_task->sub_tasks.begin(); i != params.ref_task->sub_tasks.end(); ++i) {
                if (*i && (!(*i)->target_surface || (*i)->target_surface->empty())) {
                    if (!optimized) {
                        int index = i - params.ref_task->sub_tasks.begin();
                        apply_clone(params);
                        optimized = true;
                        i = params.ref_task->sub_tasks.begin() + index;
                    }

                    *i = (*i)->clone();

                    if (!(*i)->target_surface) {
                        if (sw) {
                            (*i)->target_surface = new SurfaceSW();
                        }

#ifdef WITH_OPENGL

                        if (gl) {
                            (*i)->target_surface = new SurfaceGL();
                        }

#endif
                        (*i)->target_surface->is_temporary = true;
                    }

                    (*i)->target_surface->set_size(params.ref_task->target_surface->get_size());
                    (*i)->init_target_rect(
                        params.ref_task->get_target_rect(),
                        params.ref_task->get_source_rect_lt(),
                        params.ref_task->get_source_rect_rb());
                    assert((*i)->check());
                }
            }
        }
    }
}